The 'aftermarket' already provide alloy tanks, because there is demand, more bikes sold means more demand for service/parts in the future. The US is very different from the UK, we have all the Donny bikes sold in the UK and now the TVS bikes. Compare that to the few sold in the US over a much longer period.
We know there are 577 bikes impacted by the recall, which is not all their production, so they are well on the way to selling a thousand in the UK. The 961 is only sold in the UK so other markets don't matter. The well known issues with the Donny bikes along with the terrible company reputation meant they never sold well here. I suspect there are far more TVS 961s in the UK already, than the Donny bikes. Also, a few of those bikes will be crashed/broken for spares each year, another source of spares into the future. Hasn't Stuart already build a few complete bikes from spare parts?
Lots of bikes get recalls, I don't think it'll make much difference to potential customers. Just look at the 2025 ZX6R... they may need a new engine..